57700-19-3

Basic information

• Product Name: 2-ethynyl-9H-fluorene
• Synonyms: 2-Ethynyl-9H-fluorene; 9H-Fluorene, 2-ethynyl-
• CAS NO: 57700-19-3
• Molecular Formula: C₁₅H₁₀
• Molecular Weight: 190.2399
• Mol File: 57700-19-3.mol
• Article Data: 3

Chemical Properties

• Boiling Point: 344.9°C at 760 mmHg
• Flash Point: 153.5°C
• Density: 1.15g/cm³
• Vapor Pressure: 0.000127mmHg at 25°C
• Refractive Index: 1.665
• CAS DataBase Reference: 2-ethynyl-9H-fluorene(CAS DataBase Reference)
• NIST Chemistry Reference: 2-ethynyl-9H-fluorene(57700-19-3)
• EPA Substance Registry System: 2-ethynyl-9H-fluorene(57700-19-3)

Safety Data

• Hazardous Substances Data: 57700-19-3(Hazardous Substances Data)

Upstream product

• 2523-42-4 2-iodo-9H-fluorene 
• 1066-54-2 trimethylsilylacetylene 

Downstream Products

• 1207-20-1 2-ethylfluorene 

Relevant articles and documents

Palladium-Catalyzed Cascade Intramolecular Cyclization and Allylation of Enynoates with Allylic Alcohols

A Pd(II)-catalyzed mild and highly regioselective 6-endo cyclization/allylation reaction of enynoates with simple allylic alcohols has been developed. Under mild reaction conditions, the vinyl palladium species generated in situ after cyclization could insert C-C double bond of allylic alcohol through cross-coupling reaction and lead to the formation of allyl pyrone via β-OH elimination. This cascade cross-coupling reaction represents a direct and atom economic methodology for the construction of novel allyl pyrones in moderate to good yields.

(Z)-Selective cross-dimerization of arylacetylenes with silylacetylenes catalyzed by vinylideneruthenium complexes

The vinylideneruthenium(II) complexes bearing bulky and basic tertiary phosphine ligands, RuCl2(=C=CHPh)L2 (L = PPr i3, PCy3), serves as a good catalyst precursor for (Z)-selective cross-dimerization between arylacetylenes and silylacetylenes in the presence of N-methylpyrrolidine. The Royal Society of Chemistry 2005.